This PowerCLI oneliner will give you quick insight in the capacity of your VMware clusters by showing the oversubscription on CPU’s. The CPU Oversubscription is the ratio between the number of virtual CPU’s (vCpu) allocated to all vm’s in the cluster to the number of physical processor cores of the hosts in the cluster. If […]
Simplification of repetitive jobs is very necessary in certain industries especially online casinos. The example that will be used is the iGaming industry, or online casinos. It provides a great example, because the online casino industry is a huge industry that acts 100% online. All the slot machines they offer can only be played with […]
Are you still performing old-school in-guest VM backups with a backup agent? Not ready to buy a backup product that does complete VM backups through the vStorage APIs? Then you will need to rebuild all your VM’s with the original configuration before you can start restoring your data. As always: PowerCLI to the rescue! This […]
VMware has announced the next generation of vSphere yesterday. Besides lots of new features, vSphere 5 also comes with a new licensing structure. For every licensed physical CPU, you get a certain amount of vRAM, which you will be able to allocate to virtual machine. Only the running VM’s will count towards your license limit. […]
Using Memory Limits in vmware vSphere can cause severe performance issues. The guest operating system assumes it can use all of the allocated memory, but vSphere will make sure the vm cannot use more than the memory limit. It does this by inflating a memory balloon using the balloon driver included with the vmware tools. […]
Configuring a syslog folder is convenient for troubleshooting ESXi. But it’s a pain you-know-where to configure manually across all your ESXi servers. Luckily, PowerCLI can help out. This script creates a folder on the local datastore and configures ESXi to write the syslog in that folder. Enjoy! Hugo
